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Nav: workaround to kindly handle ALT-TAB without detecting TAB-release on backends that clear all keys on unfocus. (#787)

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omar 2018-01-29 23:49:51 +01:00
parent c851b33352
commit bed6ef03f5
2 changed files with 6 additions and 2 deletions
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2
TODO.txt
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@ -238,6 +238,8 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622) - focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622)
- focus: SetKeyboardFocusHere() on with >= 0 offset could be done on same frame (else latch and modulate on beginning of next frame) - focus: SetKeyboardFocusHere() on with >= 0 offset could be done on same frame (else latch and modulate on beginning of next frame)
- focus: unable to use SetKeyboardFocusHere() on clipped widgets. (#787) - focus: unable to use SetKeyboardFocusHere() on clipped widgets. (#787)
- inputs: we need an explicit flag about whether the imgui window is focused, to be able to distinguish focused key releases vs alt-tabbing all release behaviors.
- inputs: rework IO system to be able to pass actual ordered/timestamped events. use an event queue? (~#335, #71) - inputs: rework IO system to be able to pass actual ordered/timestamped events. use an event queue? (~#335, #71)
- inputs: support track pad style scrolling & slider edit. - inputs: support track pad style scrolling & slider edit.

6
imgui.cpp
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@ -2780,9 +2780,11 @@ static void ImGui::NavUpdateWindowing()
apply_focus_window = g.NavWindowingTarget; apply_focus_window = g.NavWindowingTarget;
} }
// Keyboard: Press and release ALT to toggle menu layer // Keyboard: Press and Release ALT to toggle menu layer
// FIXME: We lack an explicit IO variable for "is the imgui window focused", so compare mouse validity to detect the common case of backend clearing releases all keys on ALT-TAB
if ((g.ActiveId == 0 || g.ActiveIdAllowOverlap) && IsNavInputPressed(ImGuiNavInput_KeyMenu, ImGuiInputReadMode_Released)) if ((g.ActiveId == 0 || g.ActiveIdAllowOverlap) && IsNavInputPressed(ImGuiNavInput_KeyMenu, ImGuiInputReadMode_Released))
apply_toggle_layer = true; if (IsMousePosValid(&g.IO.MousePos) == IsMousePosValid(&g.IO.MousePosPrev))
apply_toggle_layer = true;
// Move window // Move window
if (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoMove)) if (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoMove))